#include <stdio.h> 
#include <sys/types.h> 
#include <sys/param.h>
#include <sys/ioctl.h> 
#include <sys/socket.h> 
#include <net/if.h> 
#include <netinet/in.h> 
#include <net/if_arp.h>
#ifdef SOLARIS 
#include <sys/sockio.h> 
#endif
#define MAXINTERFACES   16

/*
 * 获取到所有的网卡信息
 */

main (argc, argv) 
register int argc; 
register char *argv[]; 
{ 
   register int fd, intrface, retn = 0; 
   struct ifreq buf[MAXINTERFACES]; 
   struct arpreq arp; 
   struct ifconf ifc;
 if ((fd = socket (AF_INET, SOCK_DGRAM, 0)) >= 0) 
 { 
  ifc.ifc_len = sizeof buf; 
  ifc.ifc_buf = (caddr_t) buf; 
  if (!ioctl (fd, SIOCGIFCONF, (char *) &ifc)) 
  { 
   //获取接口信息
   intrface = ifc.ifc_len / sizeof (struct ifreq); 
    printf("interface num is intrface=%d\n\n\n",intrface); 
   //根据借口信息循环获取设备IP和MAC地址
   while (intrface-- > 0) 
   { 
    //获取设备名称
    printf ("net device %s\n", buf[intrface].ifr_name); 
 
    //判断网卡类型 
    if (!(ioctl (fd, SIOCGIFFLAGS, (char *) &buf[intrface]))) 
    { 
     if (buf[intrface].ifr_flags & IFF_PROMISC) 
     { 
      puts ("the interface is PROMISC"); 
      retn++; 
     } 
    } 
    else 
    { 
     char str[256];
     sprintf (str, "cpm: ioctl device %s", buf[intrface].ifr_name); 
     perror (str); 
    }
   //判断网卡状态 
            if (buf[intrface].ifr_flags & IFF_UP) 
   { 
                puts("the interface status is UP"); 
            } 
            else 
   { 
                puts("the interface status is DOWN"); 
            }
   //获取当前网卡的IP地址 
            if (!(ioctl (fd, SIOCGIFADDR, (char *) &buf[intrface]))) 
            { 
                 puts ("IP address is:"); 
                 puts(inet_ntoa(((struct sockaddr_in*)(&buf[intrface].ifr_addr))->sin_addr)); 
                 puts(""); 
                   //puts (buf[intrface].ifr_addr.sa_data); 
            } 
            else 
   { 
               char str[256];
               sprintf (str, "cpm: ioctl device %s", buf[intrface].ifr_name); 
               perror (str); 
           } 
/* this section can't get Hardware Address,I don't know whether the reason is module driver*/ 
#ifdef SOLARIS 
   //获取MAC地址
            arp.arp_pa.sa_family = AF_INET; 
            arp.arp_ha.sa_family = AF_INET; 
            ((struct sockaddr_in*)&arp.arp_pa)->sin_addr.s_addr=((struct sockaddr_in*)(&buf[intrface].ifr_addr))->sin_addr.s_addr; 
            if (!(ioctl (fd, SIOCGARP, (char *) &arp))) 
            { 
                 puts ("HW address is:");
    //以十六进制显示MAC地址
                 printf("%02x:%02x:%02x:%02x:%02x:%02x\n", 
                                (unsigned char)arp.arp_ha.sa_data[0], 
                                (unsigned char)arp.arp_ha.sa_data[1], 
                                (unsigned char)arp.arp_ha.sa_data[2], 
                                (unsigned char)arp.arp_ha.sa_data[3], 
                                (unsigned char)arp.arp_ha.sa_data[4], 
                                (unsigned char)arp.arp_ha.sa_data[5]);
                 puts(""); 
                 puts(""); 
            }

#else 
#if 0 
   /*Get HW ADDRESS of the net card */ 
            if (!(ioctl (fd,  SIOCGENADDR, (char *) &buf[intrface]))) 
            { 
                 puts ("HW address is:");
                 printf("%02x:%02x:%02x:%02x:%02x:%02x\n", 
                                (unsigned char)buf[intrface].ifr_enaddr[0], 
                                (unsigned char)buf[intrface].ifr_enaddr[1], 
                                (unsigned char)buf[intrface].ifr_enaddr[2], 
                                (unsigned char)buf[intrface].ifr_enaddr[3], 
                                (unsigned char)buf[intrface].ifr_enaddr[4], 
                                (unsigned char)buf[intrface].ifr_enaddr[5]);
                 puts(""); 
                 puts(""); 
            } 
#endif 
            if (!(ioctl (fd, SIOCGIFHWADDR, (char *) &buf[intrface]))) 
            { 
                 puts ("HW address is:");
                 printf("%02x:%02x:%02x:%02x:%02x:%02x\n", 
                                (unsigned char)buf[intrface].ifr_hwaddr.sa_data[0], 
                                (unsigned char)buf[intrface].ifr_hwaddr.sa_data[1], 
                                (unsigned char)buf[intrface].ifr_hwaddr.sa_data[2], 
                                (unsigned char)buf[intrface].ifr_hwaddr.sa_data[3], 
                                (unsigned char)buf[intrface].ifr_hwaddr.sa_data[4], 
                                (unsigned char)buf[intrface].ifr_hwaddr.sa_data[5]);
                 puts(""); 
                 puts(""); 
             } 
#endif
            else 
   { 
               char str[256];
               sprintf (str, "cpm: ioctl device %s", buf[intrface].ifr_name); 
               perror (str); 
           } 
        } //while
      } else 
         perror ("cpm: ioctl");
   } else 
      perror ("cpm: socket");
    close (fd); 
    return retn; 
}